The logic is that you hit faster at the cost of base damage. Faster hits, more Crushing Blow. More CB = more damage against bosses.
If you want a decent base for a weapon, just use a Cryptic Axe or GPA to balance base damage with decent speed. If you're using something like Treachery Andy's or other gear pieces with IAS on it, you're better off with higher base damage than you are with more IAS, since IAS benefits diminish when you get to higher points due to higher gaps.
This post was edited by eric1014153 on May 16 2022 09:46am